Tube cross-reference

6AK5 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6AK5 voltage pentode - sharp cutoff (single). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 6AK5

The following tubes are recorded as possible replacements for 6AK5. This direction does not establish that 6AK5 can replace them.

6F32

Voltage Pentode - Sharp Cutoff (single)

Foreign To American

The database records 6F32 as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	B07
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.63 A

DP61

Voltage Pentode - High Frequency (single)

Foreign To American

The database records DP61 as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - High Frequency (single)
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

E95F

Voltage Pentode

Foreign To American

The database records E95F as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

EF95

Voltage Pentode - Sharp Cutoff (single)

Foreign To American

The database records EF95 as a possible replacement for6AK5.

Not suitable for all circuits

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	7BD
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

M8100

Voltage Pentode

Foreign To American

The database records M8100 as a possible replacement for6AK5.

Not suitable for all circuits

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	Not recorded
Base pins	7	Not recorded
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

403A

Voltage Pentode - High Frequency (single)

Receiving To Industrial Tubes

The database records 403A as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - High Frequency (single)
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

5591

Voltage Pentode - High Frequency (single)

Receiving To Industrial Tubes

The database records 5591 as a possible replacement for6AK5.

Parallel heater circuits only

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - High Frequency (single)
Construction	Pentode	Pentode
Base	7BD	E7-1
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.15 A

5654

Voltage Pentode - Sharp Cutoff (single)

Receiving To Industrial Tubes

The database records 5654 as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	E7-1
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

6096

Voltage Pentode - Sharp Cutoff (single)

Receiving To Industrial Tubes

The database records 6096 as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

6968

Voltage Pentode - High Frequency (single)

Receiving To Industrial Tubes

The database records 6968 as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - High Frequency (single)
Construction	Pentode	Pentode
Base	7BD	78D
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

6AK5W

Voltage Pentode - Sharp Cutoff (single)

Receiving To Industrial Tubes

The database records 6AK5W as a possible replacement for6AK5.

No special restrictions are recorded for this substitution.

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	7BD
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

6AG5

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6AG5 as a possible replacement for6AK5.

Parallel heater circuits only

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	E7-1
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.3 A

6BC5

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6BC5 as a possible replacement for6AK5.

Parallel heater circuits only

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	7BC
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.6 A

6CE5

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6CE5 as a possible replacement for6AK5.

Parallel heater circuits only

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	7BD
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.3 A

6CY5

Voltage Tetrode

Receiving Tubes

The database records 6CY5 as a possible replacement for6AK5.

Parallel heater circuits only
Not suitable for all circuits

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Tetrode
Construction	Pentode	Tetrode
Base	7BD	7EW
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.2 A

6EA5

Voltage Tetrode

Receiving Tubes

The database records 6EA5 as a possible replacement for6AK5.

Parallel heater circuits only
Not suitable for all circuits

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Tetrode
Construction	Pentode	Tetrode
Base	7BD	7EW
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.2 A

6EV5

Voltage Tetrode

Receiving Tubes

The database records 6EV5 as a possible replacement for6AK5.

Parallel heater circuits only
Not suitable for all circuits

Specification	Original tube	Replacement
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Tetrode
Construction	Pentode	Tetrode
Base	7BD	E7-1
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.6 A

Where 6AK5 can be used as the replacement

In these recorded relationships, 6AK5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6AK5.

6F32

Voltage Pentode - Sharp Cutoff (single)

American To Foreign

The database records 6AK5 as a possible replacement for6F32.

No special restrictions are recorded for this substitution.

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	B07
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.63 A

DP61

Voltage Pentode - High Frequency (single)

American To Foreign

The database records 6AK5 as a possible replacement forDP61.

No special restrictions are recorded for this substitution.

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - High Frequency (single)
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

E95F

Voltage Pentode

American To Foreign

The database records 6AK5 as a possible replacement forE95F.

No special restrictions are recorded for this substitution.

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

EF95

Voltage Pentode - Sharp Cutoff (single)

American To Foreign

The database records 6AK5 as a possible replacement forEF95.

No special restrictions are recorded for this substitution.

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	7BD
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

403A

Voltage Pentode - High Frequency (single)

Communications And Special Purpose Tubes

The database records 6AK5 as a possible replacement for403A.

No special restrictions are recorded for this substitution.

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - High Frequency (single)
Construction	Pentode	Pentode
Base	7BD	Not recorded
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

6968

Voltage Pentode - High Frequency (single)

Communications And Special Purpose Tubes

The database records 6AK5 as a possible replacement for6968.

No special restrictions are recorded for this substitution.

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - High Frequency (single)
Construction	Pentode	Pentode
Base	7BD	78D
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.175 A

6AG5

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6AK5 as a possible replacement for6AG5.

Parallel heater circuits only

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	E7-1
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.3 A

6BC5

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6AK5 as a possible replacement for6BC5.

Parallel heater circuits only

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	7BC
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.6 A

6CE5

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6AK5 as a possible replacement for6CE5.

Parallel heater circuits only

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Pentode - Sharp Cutoff (single)
Construction	Pentode	Pentode
Base	7BD	7BD
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.3 A

6CY5

Voltage Tetrode

Receiving Tubes

The database records 6AK5 as a possible replacement for6CY5.

Parallel heater circuits only
Not suitable for all circuits

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Tetrode
Construction	Pentode	Tetrode
Base	7BD	7EW
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.2 A

6EA5

Voltage Tetrode

Receiving Tubes

The database records 6AK5 as a possible replacement for6EA5.

Parallel heater circuits only
Not suitable for all circuits

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Tetrode
Construction	Pentode	Tetrode
Base	7BD	7EW
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.2 A

6EV5

Voltage Tetrode

Receiving Tubes

The database records 6AK5 as a possible replacement for6EV5.

Parallel heater circuits only
Not suitable for all circuits

Specification	6AK5 replacement	Original tube
Tube type	Voltage Pentode - Sharp Cutoff (single)	Voltage Tetrode
Construction	Pentode	Tetrode
Base	7BD	E7-1
Socket	B7G	B7G
Base pins	7	7
Sections	1	1
Heater voltage	6.3 V	6.3 V
Heater current	0.175 A	0.6 A

Verify before substituting

Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.

View the complete 6AK5 specifications →